On March 16, 2019, the United States banned travel from Europe. CDC researchers have now discovered that they reported in some newspapers that the virus spread widely in Italy in February and a large-scale outbreak broke out in Italy in February. In February of this year, there may be 28,000 cases in the United States, including 10,000 in New York State. The coronavirus flu virus that came to New York did not come from China, it came from Europe.